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Published on: May 3, 2018
Cyclin-Dependent Kinase 2 Inhibitors in Cancer Therapy: An Update
Solomon Tadesse1, Elizabeth C Caldon2,3, Wayne Tilley4
1Centre for Drug Discovery and Development , University of South Australia Cancer Research Institute , Adelaide , SA 5000 , Australia.
Abstract:
Cyclin-dependent kinase 2 (CDK2) drives the progression of cells into the S- and M-phases of the cell cycle. CDK2 activity is largely dispensable for normal development, but it is critically associated with tumor growth in multiple cancer types. Although the role of CDK2 in tumorigenesis has been controversial, emerging evidence proposes that selective CDK2 inhibition may provide a therapeutic benefit against certain tumors, and it continues to appeal as a strategy to exploit in anticancer drug development. Several small-molecule CDK2 inhibitors have progressed to the clinical trials. However, a CDK2-selective inhibitor is yet to be discovered. Here, we discuss the latest understandings of the role of CDK2 in normal and cancer cells, review the core pharmacophores used to target CDK2, and outline strategies for the rational design of CDK2 inhibitors. We attempt to provide an outlook on how CDK2-selective inhibitors may open new avenues for cancer therapy.
Insights
Cyclin-dependent kinase 2 (CDK2) drives cell cycle progression and is linked to tumor growth. Selective CDK2 inhibitors show promise for cancer therapy, though a truly selective inhibitor remains elusive.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Cyclin-dependent kinase 2 (CDK2) regulates cell cycle progression through S- and M-phases.
- While dispensable for normal development, CDK2 activity is implicated in the growth of various cancers.
- The therapeutic potential of CDK2 inhibition in oncology is under investigation despite historical controversy.
Purpose of the Study:
- To review the current understanding of CDK2's role in normal and cancerous cells.
- To discuss pharmacophores utilized for CDK2 targeting.
- To outline strategies for developing rational CDK2 inhibitor designs.
Main Methods:
- Literature review of CDK2 function in cell cycle and cancer.
- Analysis of existing small-molecule CDK2 inhibitors and their pharmacophores.
- Discussion of rational drug design principles for kinase inhibitors.
Main Results:
- CDK2 plays a critical role in tumorigenesis, making it a target for anticancer drug development.
- Several small-molecule CDK2 inhibitors have advanced to clinical trials.
- A major challenge remains the discovery of a highly selective CDK2 inhibitor.
Conclusions:
- Selective CDK2 inhibition presents a potential therapeutic strategy for specific cancers.
- Further research into rational design is needed to achieve CDK2 selectivity.
- Targeting CDK2 may offer new therapeutic avenues in cancer treatment.
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